An intelligent safety valve and a control method thereof

Abstract

The present invention discloses an intelligent safety valve and a control method for the intelligent safety valve, and relates to the technical field of safety valves. The present invention includes a valve body, a cover plate is provided on the top of the valve body, a control cabin is provided on the top of the cover plate, a connection box is provided on the top of the control cabin, a first electric push rod is provided on the top of the connection box, a piston rod of the first electric push rod is fixedly connected to a valve stem, and a valve flap is fixedly connected to the bottom of the valve stem. The present invention can control the opening and closing of the valve body by providing the first electric push rod, and by activating the second electric push rod, the valve stem is kept at a fixed height, thereby controlling the flow rate of the valve body. At the same time, the triangular block drives the rack to move vertically downward while moving downward, and finally the current position of the valve stem can be understood through the indication of the indicator arrow.

Description

Technical Field

[0001] The present invention belongs to the technical field of safety valves, and in particular relates to an intelligent safety valve and a control method for the intelligent safety valve. Background Art

[0002] A safety valve is a special valve whose opening and closing components remain normally closed under external forces. When the pressure of the medium within the equipment or pipeline rises above a specified value, it releases the medium to the outside of the system to prevent the pressure within the pipeline or equipment from exceeding the specified value. Safety valves are automatic valves primarily used in boilers, pressure vessels, and pipelines to control pressure within a specified value, playing a vital role in protecting personnel and equipment operation. Note: Safety valves must undergo a pressure test before use.

[0003] The existing safety valve has the following defects when in use:

[0004] 1. The valve disc cannot maintain stability after moving to the appropriate position and is prone to loosening, resulting in the inability to accurately control the flow rate;

[0005] 2. The valve disc moves inside the valve body, and the position of the valve disc cannot be determined by external observation, which is inconvenient to use. Summary of the Invention

[0006] The purpose of the present invention is to provide an intelligent safety valve and a control method for the intelligent safety valve. By setting a first electric push rod, the opening and closing of the valve body can be controlled. By starting the second electric push rod, the valve stem is kept at a fixed height, thereby controlling the flow rate of the valve body. At the same time, the triangular block will drive the rack to move vertically downward when it moves downward. Finally, the current position of the valve stem can be understood through the indication of the indicator arrow, thereby solving the existing technical problems.

[0007] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0008] An intelligent safety valve comprises: a valve body, a cover plate provided on the top of the valve body, a control cabin provided on the top of the cover plate, a connection box provided on the top of the control cabin, a first electric push rod provided on the top of the connection box, a piston rod of the first electric push rod fixedly connected to a valve stem, a valve disc fixedly connected to the bottom of the valve stem, a liquid inlet and a liquid outlet respectively provided on two sides of the valve body, a communicating hole provided inside the valve body, the liquid inlet and the liquid outlet both being connected to the communicating hole, and the communicating hole being used in conjunction with the valve disc;

[0009] The bottom of the connection box is fixedly connected to a fixed transverse plate, the bottom of the fixed transverse plate is fixedly connected to a fixed rod, and a brake assembly for braking the valve rod is provided inside the fixed rod;

[0010] One side of the fixing rod is fixedly connected to a first fixing plate, and one side of the first fixing plate is provided with an indicating component for indicating the position of the valve disc.

[0011] Optionally, the brake assembly includes a plurality of protrusions that slide through the fixed rod, one end of the protrusion is fixedly connected to a limiting plate, a same tension spring is fixedly connected between the limiting plate and the fixed rod, the tension spring is sleeved on the protrusion, and a slot that engages with the protrusion is opened on one side of the valve stem.

[0012] Optionally, the indicating assembly includes a second rotating shaft rotatably connected to one side of the first fixed plate, the outer wall of the second rotating shaft is fixedly sleeved with a first bevel gear, one side of the fixed rod is fixedly connected to the second fixed plate, the interior of the second fixed plate rotates through the first rotating shaft, one end of the first rotating shaft is fixedly connected to a second bevel gear meshing with the first bevel gear, and the other end of the first rotating shaft is fixedly sleeved with a first spur gear.

[0013] Optionally, the indicating assembly further comprises an annular plate that rotates and passes through the interior of the connection box, and a gear ring is fixedly sleeved on the inner wall of the annular plate, and the gear ring is meshed with the first spur gear.

[0014] Optionally, a plurality of scale lines are fixedly connected to the top of the annular plate, and an indicator arrow used in conjunction with the scale lines is fixedly connected to the top of the connection box.

[0015] Optionally, a second electric push rod is fixedly connected to the bottom of the fixed horizontal plate, and the piston rod of the second electric push rod is fixedly connected to a triangular block. The triangular block is used in conjunction with a limit plate, and one side of the triangular block is fixedly connected to a rack. The outer wall of the second rotating shaft is fixedly sleeved with a second spur gear, and the second spur gear is meshed with the rack.

[0016] Optionally, a common sealing plate is provided between the cover plate and the valve body, and a plurality of threaded holes are provided inside the cover plate, the sealing plate and the valve body, and screws for matching use are provided inside the plurality of threaded holes.

[0017] A control method for an intelligent safety valve comprises the following steps:

[0018] S1. When the valve body needs to be opened or closed, the first electric push rod is activated. The piston rod of the first electric push rod drives the valve stem to move vertically downward, and the valve stem drives the valve disc to move vertically downward. At this time, the valve disc blocks the connecting hole, thereby controlling the opening and closing of the valve body.

[0019] S2. When the flow rate of the valve body needs to be adjusted, the second electric push rod can be started. The piston rod of the second electric push rod drives the triangular block to move vertically downward. When the triangular block moves to the side of the appropriate limit plate, the limit plate at that position can be pushed out. The piston rod of the second electric push rod and the limit plate are no longer on the same horizontal line and will not block the limit plate. At this time, the limit plate drives the protrusion to extend. When the valve stem moves to the appropriate position, the card slot engages with the extended protrusion. At this time, the valve stem remains at a fixed height, thereby controlling the flow rate of the valve body.

[0020] S3. When the triangular block moves downward, it will drive the rack to move vertically downward, the rack drives the second spur gear to rotate, the second spur gear drives the second rotating shaft to rotate, the second rotating shaft drives the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the first rotating shaft to rotate, the first rotating shaft drives the first spur gear to rotate, the first spur gear drives the gear ring to rotate, the gear ring drives the annular plate to rotate, the annular plate drives the scale line to rotate, and then the current position of the valve stem can be understood through the indication of the indicator arrow, which is easy to use.

[0021] The embodiments of the present invention have the following beneficial effects:

[0022] In the present invention, the opening and closing of the valve body can be controlled by setting a first electric push rod. By starting the second electric push rod, the valve stem is kept at a fixed height, thereby controlling the flow rate of the valve body. At the same time, the triangular block drives the rack to move vertically downward as it moves downward. Finally, the current position of the valve stem can be understood through the indication of the indicator arrow.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A schematic diagram of a three-dimensional structure of an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of a three-dimensional cross-sectional structure of an embodiment of the present invention;

[0027] Figure 3 Schematic diagram of the three-dimensional structure of the valve disc and valve stem in one embodiment of the present invention;

[0028] Figure 4 Schematic diagram of the three-dimensional structure of the first electric push rod and the connection box in one embodiment of the present invention;

[0029] Figure 5 Schematic diagram of the three-dimensional structure of the gear ring and the valve stem in one embodiment of the present invention;

[0030] Figure 6 Schematic diagram of the three-dimensional structure of the fixing rod in one embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the three-dimensional structure of the first spur gear and the rack in one embodiment of the present invention.

[0032] In the figure: 1. valve body; 2. cover plate; 3. screw; 4. control cabin; 5. sealing plate; 6. liquid inlet; 7. connecting hole; 8. liquid outlet; 9. threaded hole; 10. first electric push rod; 11. connecting box; 12. gear ring; 13. valve disc; 14. valve stem; 15. indicator arrow; 16. annular plate; 17. scale line; 18. fixing rod; 19. limit plate; 20. tension spring; 21. triangular block; 22. fixed horizontal plate; 23. protrusion; 24. slot; 25. second electric push rod; 26. first fixed plate; 27. first bevel gear; 28. second bevel gear; 29. first rotating shaft; 30. second fixed plate; 31. first spur gear; 32. rack; 33. second rotating shaft; 34. second spur gear. DETAILED DESCRIPTION

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inner" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0035] In order to keep the following description of the embodiments of the present invention clear and concise, detailed descriptions of known functions and known components are omitted.

[0036] Example 1

[0037] See also Figure 1-5As shown, in this embodiment, an intelligent safety valve is provided, comprising: a valve body 1, a cover plate 2 is provided on the top of the valve body 1, a control cabin 4 is provided on the top of the cover plate 2, a connecting box 11 is provided on the top of the control cabin 4, a first electric push rod 10 is provided on the top of the connecting box 11, the piston rod of the first electric push rod 10 is fixedly connected to the valve stem 14, the bottom of the valve stem 14 is fixedly connected to the valve disc 13, a liquid inlet 6 and a liquid outlet 8 are respectively provided on both sides of the valve body 1, a connecting hole 7 is provided inside the valve body 1, the liquid inlet 6 and the liquid outlet 8 are both connected to the connecting hole 7, and the connecting hole 7 is used in conjunction with the valve disc 13. When it is necessary to control the opening and closing of the valve body 1, the first electric push rod 10 is started, the piston rod of the first electric push rod 10 drives the valve stem 14 to move vertically downward, and the valve stem 14 drives the valve disc 13 to move vertically downward. At this time, the valve disc 13 blocks the connecting hole 7, thereby controlling the opening and closing of the valve body 1;

[0038] The bottom of the connection box 11 is fixedly connected to a fixed transverse plate 22, and the bottom of the fixed transverse plate 22 is fixedly connected to a fixed rod 18. The interior of the fixed rod 18 is provided with a brake assembly for braking the valve stem 14;

[0039] One side of the fixing rod 18 is fixedly connected to a first fixing plate 26 , and one side of the first fixing plate 26 is provided with an indicating component for indicating the position of the valve flap 13 .

[0040] In one aspect of this embodiment, Figure 2-6 As shown, the indicator assembly includes a second rotating shaft 33 rotatably connected to one side of the first fixed plate 26. The outer wall of the second rotating shaft 33 is fixedly sleeved with a first bevel gear 27. A second fixed plate 30 is fixedly connected to one side of the fixed rod 18. A first rotating shaft 29 rotatably extends through the interior of the second fixed plate 30. One end of the first rotating shaft 29 is fixedly connected to a second bevel gear 28 that meshes with the first bevel gear 27. The other end of the first rotating shaft 29 is fixedly sleeved with a first spur gear 31. Optionally, the indicator assembly also includes an annular plate 16 rotatably extending through the interior of the connecting box 11. The inner wall of the annular plate 16 is fixedly sleeved with a gear ring 12 that meshes with the first spur gear 31. The present application is not limited to this.

[0041] As the triangular block 21 moves downward, it will drive the rack 32 to move vertically downward. The rack 32 drives the second spur gear 34 to rotate, and the second spur gear 34 drives the second rotating shaft 33 to rotate. The second rotating shaft 33 drives the first bevel gear 27 to rotate, and the first bevel gear 27 drives the second bevel gear 28 to rotate. The second bevel gear 28 drives the first rotating shaft 29 to rotate, and the first rotating shaft 29 drives the first spur gear 31 to rotate. The first spur gear 31 drives the gear ring 12 to rotate, and the gear ring 12 drives the annular plate 16 to rotate, and the annular plate 16 drives the scale line 17 to rotate. Then, the current position of the valve stem 14 can be understood through the indication of the indicator arrow 15.

[0042] In one aspect of this embodiment, Figure 4-7 As shown, the brake assembly includes a plurality of protrusions 23 that slide through the fixed rod 18, one end of the protrusion 23 is fixedly connected to the limit plate 19, and the same tension spring 20 is fixedly connected between the limit plate 19 and the fixed rod 18. The tension spring 20 is sleeved on the protrusion 23, and a slot 24 that engages with the protrusion 23 is opened on one side of the valve stem 14.

[0043] Example 2

[0044] Improvements based on Example 1: Refer to the attached Figure 1-3 , a plurality of scale lines 17 are fixedly connected to the top of the annular plate 16, an indicator arrow 15 used in conjunction with the scale lines 17 is fixedly connected to the top of the connecting box 11, a second electric push rod 25 is fixedly connected to the bottom of the fixed horizontal plate 22, and the piston rod of the second electric push rod 25 is fixedly connected to a triangular block 21, which is used in conjunction with the limit plate 19. A rack 32 is fixedly connected to one side of the triangular block 21, and a second spur gear 34 is fixedly sleeved on the outer wall of the second rotating shaft 33, and the second spur gear 34 is meshed with the rack 32.

[0045] Example 3

[0046] Improvements based on Example 1: Refer to the attached Figure 1-2 A sealing plate 5 is provided between the cover plate 2 and the valve body 1. A plurality of threaded holes 9 are provided inside the cover plate 2, the sealing plate 5 and the valve body 1. Screws 3 for use with the screws 3 are provided inside the plurality of threaded holes 9.

[0047] A control method for an intelligent safety valve comprises the following steps:

[0048] S1. During use, when it is necessary to control the opening and closing of the valve body 1, the first electric push rod 10 is started, and the piston rod of the first electric push rod 10 drives the valve stem 14 to move vertically downward, and the valve stem 14 drives the valve disc 13 to move vertically downward. At this time, the valve disc 13 blocks the communicating hole 7, thereby controlling the opening and closing of the valve body 1;

[0049] S2. When the flow rate of the valve body 1 needs to be adjusted, the second electric push rod 25 can be started. The piston rod of the second electric push rod 25 drives the triangular block 21 to move vertically downward. When the triangular block 21 moves to the side of the appropriate limit plate 19, the limit plate 19 at this position can be pushed out. The piston rod of the second electric push rod 25 and the limit plate 19 are no longer on the same horizontal line and will not block the limit plate 19. At this time, the limit plate 19 drives the protrusion 23 to extend. When the valve stem 14 moves to the appropriate position, the slot 24 engages with the extended protrusion 23. At this time, the valve stem 14 remains at a fixed height, thereby controlling the flow rate of the valve body 1.

[0050] S3. When the triangular block 21 moves downward, it will drive the rack 32 to move vertically downward. The rack 32 drives the second spur gear 34 to rotate, and the second spur gear 34 drives the second rotating shaft 33 to rotate. The second rotating shaft 33 drives the first bevel gear 27 to rotate, and the first bevel gear 27 drives the second bevel gear 28 to rotate. The second bevel gear 28 drives the first rotating shaft 29 to rotate, and the first rotating shaft 29 drives the first spur gear 31 to rotate. The first spur gear 31 drives the gear ring 12 to rotate, and the gear ring 12 drives the annular plate 16 to rotate, and the annular plate 16 drives the scale line 17 to rotate. Then, the current position of the valve stem 14 can be understood through the indication of the indicator arrow 15, which is convenient to use.

[0051] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are only used to distinguish various features and have no actual order or directional meaning, and this application is not limited to this.

[0052] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0053] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An intelligent safety valve, characterized in that: include: A valve body (1), wherein a cover plate (2) is provided on the top of the valve body (1), a control cabin (4) is provided on the top of the cover plate (2), a connection box (11) is provided on the top of the control cabin (4), a first electric push rod (10) is provided on the top of the connection box (11), a piston rod of the first electric push rod (10) is fixedly connected to a valve stem (14), a valve flap (13) is fixedly connected to the bottom of the valve stem (14), a liquid inlet (6) and a liquid outlet (8) are respectively provided on both sides of the valve body (1), a connecting hole (7) is provided inside the valve body (1), the liquid inlet (6) and the liquid outlet (8) are both connected to the connecting hole (7), and the connecting hole (7) is used in conjunction with the valve flap (13); The bottom of the connection box (11) is fixedly connected to a fixed transverse plate (22), the bottom of the fixed transverse plate (22) is fixedly connected to a fixed rod (18), and a brake assembly for braking the valve rod (14) is provided inside the fixed rod (18); A first fixing plate (26) is fixedly connected to one side of the fixing rod (18), and an indicating component for indicating the position of the valve flap (13) is provided on one side of the first fixing plate (26); The brake assembly includes a plurality of protrusions (23) that slide through the fixed rod (18), one end of the protrusion (23) is fixedly connected to a limit plate (19), a tension spring (20) is fixedly connected between the limit plate (19) and the fixed rod (18), and the tension spring (20) is sleeved on the protrusion (23), and a slot (24) that engages with the protrusion (23) is provided on one side of the valve stem (14); The indicating assembly includes a second rotating shaft (33) rotatably connected to one side of the first fixed plate (26), an outer wall of the second rotating shaft (33) is fixedly sleeved with a first bevel gear (27), one side of the fixed rod (18) is fixedly connected to the second fixed plate (30), the interior of the second fixed plate (30) is rotatably penetrated by a first rotating shaft (29), one end of the first rotating shaft (29) is fixedly connected to a second bevel gear (28) meshing with the first bevel gear (27), and the other end of the first rotating shaft (29) is fixedly sleeved with a first spur gear (31); The bottom of the fixed horizontal plate (22) is fixedly connected to a second electric push rod (25), the piston rod of the second electric push rod (25) is fixedly connected to a triangular block (21), the triangular block (21) is used in conjunction with the limit plate (19), one side of the triangular block (21) is fixedly connected to a rack (32), the outer wall of the second rotating shaft (33) is fixedly sleeved with a second spur gear (34), and the second spur gear (34) is meshed with the rack (32).

2. The intelligent safety valve according to claim 1, characterized in that: The indicating assembly further comprises an annular plate (16) that rotates and passes through the interior of the connecting box (11); a gear ring (12) is fixedly sleeved on the inner wall of the annular plate (16); and the gear ring (12) is meshed with the first spur gear (31).

3. The intelligent safety valve according to claim 2, characterized in that: A plurality of scale lines (17) are fixedly connected to the top of the annular plate (16), and an indicator arrow (15) used in conjunction with the scale lines (17) is fixedly connected to the top of the connection box (11).

4. The intelligent safety valve according to claim 3, characterized in that: A common sealing plate (5) is provided between the cover plate (2) and the valve body (1), and a plurality of threaded holes (9) are provided inside the cover plate (2), the sealing plate (5), and the valve body (1), and screws (3) for use therewith are provided inside the plurality of threaded holes (9).

5. A control method for an intelligent safety valve according to any one of claims 3 to 4, characterized in that: The specific steps include: S1. During use, when it is necessary to control the opening and closing of the valve body (1), the first electric push rod (10) is activated, and the piston rod of the first electric push rod (10) drives the valve stem (14) to move vertically downward, and the valve stem (14) drives the valve disc (13) to move vertically downward, at which time the valve disc (13) blocks the communicating hole (7), thereby controlling the opening and closing of the valve body (1); S2. When the flow rate of the valve body (1) needs to be adjusted, the second electric push rod (25) can be started, and the piston rod of the second electric push rod (25) drives the triangular block (21) to move vertically downward. When the triangular block (21) moves to the side of the limit plate (19) located at a suitable position, the limit plate (19) can be pushed out. The piston rod of the second electric push rod (25) and the limit plate (19) are not on the same horizontal line and will not block the limit plate (19). At this time, the limit plate (19) drives the protrusion (23) to extend. When the valve stem (14) moves to a suitable position, the slot (24) engages with the extended protrusion (23). At this time, the valve stem (14) is kept at a fixed height, thereby controlling the flow rate of the valve body (1); S3. When the triangular block (21) moves downward, it drives the rack (32) to move vertically downward. The rack (32) drives the second spur gear (34) to rotate. The second spur gear (34) drives the second rotating shaft (33) to rotate. The second rotating shaft (33) drives the first bevel gear (27) to rotate. The first bevel gear (27) drives the second bevel gear (28) to rotate. The second bevel gear (28) drives the first rotating shaft (29) to rotate. The first rotating shaft (29) drives the first spur gear (31) to rotate. The first spur gear (31) drives the gear ring (12) to rotate. The gear ring (12) drives the annular plate (16) to rotate. The annular plate (16) drives the scale line (17) to rotate. Then, the current position of the valve stem (14) can be understood through the indication of the indicator arrow (15). It is easy to use.

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